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BOSTON MARATHON 2023

Thomas Heinlein

Bib: 15506•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 37%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 40%
Division (M55-59)
#0 / 1422
Top 22%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:44/mi
24:02
↑ 97↓ 3451.5%
10K· 6.21 mi
7:39/mi
47:47
↑ 79↓ 1380.4%
15K· 9.32 mi
7:40/mi
1:11:35
↑ 67↓ 78
20K· 12.43 mi
7:40/mi
1:35:25
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:40:37
↑ 19↓ 370.5%
25K· 15.53 mi
7:38/mi
1:59:08
↑ 66↓ 880.2%
30K· 18.64 mi
7:46/mi
2:23:17
↑ 181↓ 1480.2%
20M
7:38/mi
2:33:39
↑ 64↓ 500.2%
21M
8:02/mi
2:41:41
↑ 106↓ 241.6%
35K· 21.75 mi
7:26/mi
2:47:15
↑ 17↓ 861.7%
23M
7:41/mi
2:56:52
↑ 23↓ 630.6%
24M
7:37/mi
3:04:29
↓ 821.3%
40K· 24.85 mi
7:51/mi
3:11:12
↓ 200.3%
25.2M
8:27/mi
3:14:07
↑ 13↓ 160.2%
Finish· 26.22 mi
7:48/mi
3:22:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:40:37
Pace7:40 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:41:27
Pace7:44 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1324:027:4424:02
7:44
-
10K
6.21 mi11:17:5847:477:4123:45
7:39
-0:05
15K
9.32 mi11:41:461:11:357:4123:48
7:40
+0:01
20K
12.43 mi12:05:361:35:257:4123:50
7:40
0:00
Half
13.11 mi12:10:481:40:377:405:12
7:37
-0:03
25K
15.53 mi12:29:191:59:087:4018:31
7:38
+0:01
30K
18.64 mi12:53:282:23:177:4124:09
7:46
+0:08
20M
20.00 mi13:03:502:33:397:4110:22
7:38
-0:08
21M
21.00 mi13:11:522:41:417:428:02
8:02
+0:24
35K
21.75 mi13:17:262:47:157:415:34
7:26
-0:36
23M
23.00 mi13:27:032:56:527:419:37
7:41
+0:15
24M
24.00 mi13:34:403:04:297:417:37
7:37
-0:04
40K
24.85 mi13:41:233:11:127:426:43
7:51
+0:14
25.2M
25.20 mi13:44:183:14:077:422:55
8:27
+0:36
Finish
26.22 mi13:52:153:22:047:437:57
7:48
-0:39

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:26 /mi

Average Pace

7:43 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:19:09

99% of race

Time at Steady Pace

2:55

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:42 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:54:1324:027:4424:02
7:44
#11756
10K
6.21 mi11:17:5847:477:4123:45
7:39
#11698
15K
9.32 mi11:41:461:11:357:4123:48
7:40
#11605
20K
12.43 mi12:05:361:35:257:4123:50
7:40
#11324
Half
13.11 mi12:10:481:40:377:405:12
7:37
#11320
25K
15.53 mi12:29:191:59:087:4018:31
7:38
#11047
30K
18.64 mi12:53:282:23:177:4124:09
7:46
#10638
20M
20.00 mi13:03:502:33:397:4110:22
7:38
#10418
21M
21.00 mi13:11:522:41:417:428:02
8:02
#10209
35K
21.75 mi13:17:262:47:157:415:34
7:26
#10115
23M
23.00 mi13:27:032:56:527:419:37
7:41
#9917
24M
24.00 mi13:34:403:04:297:417:37
7:37
#9823
40K
24.85 mi13:41:233:11:127:426:43
7:51
#9775
25.2M
25.20 mi13:44:183:14:077:422:55
8:27
#9749
Finish
26.22 mi13:52:153:22:047:437:57
7:48
#9746
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi117569012901211490(Top 43%)8849(Top 58%)8849(Top 622%)
10K6.21 mi3.10 mi11698+588976+368976+3611717(Top 44%)8985(Top 59%)8985(Top 632%)
15K9.32 mi3.11 mi11605+938923+538923+5311490(Top 43%)8849(Top 58%)8849(Top 622%)
20K12.43 mi3.11 mi11324+2818792+1318792+13110666(Top 40%)8410(Top 55%)8410(Top 591%)
Half13.11 mi0.68 mi11320+48789+38789+311123(Top 42%)8655(Top 57%)8655(Top 609%)
25K15.53 mi2.42 mi11047+2738650+1398650+1399821(Top 37%)7883(Top 52%)7883(Top 554%)
30K18.64 mi3.11 mi10638+4098401+2498401+2499153(Top 34%)7365(Top 49%)7365(Top 518%)
20M20.00 mi1.36 mi10418+2208274+1278274+1277687(Top 29%)6403(Top 42%)6403(Top 450%)
21M21.00 mi1.00 mi10209+2098147+1278147+1277554(Top 28%)6222(Top 41%)6222(Top 438%)
35K21.75 mi0.75 mi10115+948082+658082+658085(Top 30%)6556(Top 43%)6556(Top 461%)
23M23.00 mi1.25 mi9917+1987949+1337949+1337628(Top 29%)6204(Top 41%)6204(Top 436%)
24M24.00 mi1.00 mi9823+947863+867863+868506(Top 32%)6618(Top 44%)6618(Top 465%)
40K24.85 mi0.85 mi9775+487805+587805+589015(Top 34%)6825(Top 45%)6825(Top 480%)
25.2M25.20 mi0.35 mi9749+267784+217784+219204(Top 35%)6864(Top 45%)6864(Top 483%)
Finish26.22 mi1.02 mi9746+37751+337751+3310665(Top 40%)7630(Top 50%)7630(Top 537%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

11490

Males

8849

M55-59

8849

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

11717

Males

8985

M55-59

8985

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

11490

Males

8849

M55-59

8849

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

10666

Males

8410

M55-59

8410

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11123

Males

8655

M55-59

8655

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9821

Males

7883

M55-59

7883

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9153

Males

7365

M55-59

7365

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7687

Males

6403

M55-59

6403

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7554

Males

6222

M55-59

6222

21M→35K

21.0 - 21.8 mi

Top 30%
×7story building
+17ft-86ft

Overall

8085

Males

6556

M55-59

6556

35K→23M

21.8 - 23.0 mi

Top 29%
×5story building
+23ft-63ft

Overall

7628

Males

6204

M55-59

6204

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

8506

Males

6618

M55-59

6618

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9015

Males

6825

M55-59

6825

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9204

Males

6864

M55-59

6864

25.2M→Finish

25.2 - 26.2 mi

Top 40%
×2story building
+22ft-21ft

Overall

10665

Males

7630

M55-59

7630

Passing Analysis

Category:
Athletes Passed
2691*
Passed By
681
Net Change
+2010
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11756
5K → 10K316258+58#11756#11698
10K → 15K233140+93#11698#11605
15K → 20K32140+281#11605#11324
20K → Half2925+4#11324#11320
Half → 25K28916+273#11320#11047
25K → 30K43526+409#11047#10638
30K → 20M225*5+220#10638#10418
20M → 21M2167+209#10418#10209
21M → 35K10410+94#10209#10115
35K → 23M201*3+198#10115#9917
23M → 24M11723+94#9917#9823
24M → 40K91*43+48#9823#9775
40K → 25.2M4216+26#9775#9749
25.2M → Finish72*69+3#9749#9746
TOTALS2691*681+2010

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing